Electric water heater



June 9, 1925.

1,541,646 J. J. KUHNER v ELECTRIC WATER HEATER Filed Oct. 2, 1920 ,16 controlling means.

Patented June 9, 1925.

umreo vs'rar as JULIUS J. KUHNER, OF ILLINOIS.

ELECTRIC WATER HEATER.

Application filed October 2, 1920. Serial No. 414,290.

To all whom "it may COIMJ6ITL.

Be it known that l, JULiUs J. KUHNER,

a citizen of the United States of America,

and a resident of the city of Highland, in 6 the county of Madison and State of Illinois,

have invented certain new and useful improvements in an Electric 'ater Heater,

of which the following is a specification.

The primary object of this invention is to provide an improvement in heating containers which are adapted to be heated interiorly. i

Another objectof the invention is to pro vide an electric water heater with active A further object of this invention is to provide a water heater that is thermostatically controlled and in which the cold water receiving compartment is arranged so as to cause the thermostat to immediately become effective on the heating element as soon as the initial hot water pouring is in effect.

Other and further objects will appear in the specification and be specifically pointed out in the appended claims, reference being had to the accompanying drawings ex- 7 amplifying the invention, and in which,

Figure 1 is a vertical section taken through this improved heating device.

Figure 2 is a horizontal section taken on the line II-IIof Fig. 1.

Figure 3 is a front elevation of the electrie switch and itsoperating mechanism taken in the direction of the arrow 3, Fig. 1.

Referring to the'drawings, 1 designates a vertically extending container or compartment, and arranged above said container is a chldwaterreceivingconipartment 2, and leading from said-compartment 2 and extending into the container 1 is an inlet tube 3. Extending throu h the bottom 4 of the container 1 is an in ct cold Water pipe 5, which is connected with the supply pipe 6, said ipe 5 passing through the container 1 and communicating at 7 with the bottom 8 of the compartment 2.

Leading from the upper end of the container 1 and passing through the compartment 2 is an outlet pipe 9, which leads to the faucet 10 that is adapted to discharge into the bowl 11. Formed on the upper wall 12 of the compartment 2 is a boss 13, and secured to said boss above said wall 12 is a thermostat 14 bearing a bifurcated portion 15 on its upper surface, and horiterminal 3.),

Zontally resting in said bifurcated portion is a lever 16 whichis pivotally seciu'ed at one end to a support l 7'Wl1iCl1 extends from the upper wall 12 of the compartment 2. Ad-

justably secured to the opposite end of said .21 which; is secured by studs 22 within the recess 23 formed in the lower portion of the front wall 24; of the containerl.

Depending from the opposite end of the lever 19 and pivotally secured thereto is a leg 25 bearing a roller 26 at its lower end, and connected to said leg and said lever is a spring'27, said spring causing the roller 26 to normally bear against either one of the cam surfaces 28 and 29 which are formed on one end of acontacting member 30 which is pivoted at 31 to the plate 21. i

The member 30 has a contacting end 32 which is adapted to engage an adjustable and leadingtron'i said terminal is an electric circuit wire 34, and leading to the pivot 31 of said member 30 is a wire 85, said wire 3 leading from the electric plug 36 which is secured to the protrud ng stem 37 of an electric heating element 218 p which is located within the container 1.

In the operation of this lll'tPl'OVQtl device. the container 1 and compartment 2 are filled with water from the source of supply 6',

and assuming that the water in the container 1 and compartment 2 is at a low temperature, the rheostat 14 will be in its contracted form, in which the regulating rod 18, and lever 19 to which said rod is engaged at its lower end will be in the position shown in Fig. 3, and in which the circuit between the Wires 34 and 35 will be closed on account of the contacting end 32 of the swin ing member 30 bearing against the termina 33, and in which electric current will be supplied to the heating element 38 from the electric supply wires 39. After the water in the container has become heated, the water in the compartment 2 will become heated through circulation of the water through the tube 3 Which. leads from said compartment as well as from the heat arising from the bottom 8 of said compartment, and the heat from the compartment 2 upon being radiated to the rheostat 14 Will cause said rheostat-to gradually expand, thereby elevating the rod engaging end of the lever 16 and elevating the rod 18,, and the roller 26 which is carried by the leg; will be caused to move down *ardly on the cam face 28 of the contacting member 30 until the thermostat H has been expanded enough to cause the roller to travel on to the cam taco 29, thereb underengaging the cam end ot' the member 30 and causing the contacting end 32 of said member 30 to swing downwardly from the terminal 33, thereby b ing the circuit, in which the heating enei'g will be cut oil from the heating element 11%.

In the event that the faucet 10 is operated tor the discharge oi hot water therethroun'h trom the container 1. the water removed from said. container will be replaced trom water drained through the tube 3 trom the core artmcnt 2. said compartment being ii'nmediately supplied by cold water from the cold water pipe and as soon as the cold water enters said compartment the coolness radiated therefrom will immediately become effective on the rheostat 14, thereby contracting said rheostat and allowing the lever 16 and rod 18 to be lowered on account of the activeness of the sprint QT on the lever 19, in which the roller 26 will be elevated and brought to bear on the upper cam surface 28, therein causing the contacting end 32 ot the member 30 to swing upwardly and engage the terminal 33, thereby closing the circuit between the wires 3% and so that heating energy can be again applied to the heating element 38.

In this connection it is to be noted that the hot water contents of the compartment 2 onl; have to be drained and in which said compartment is relatively small, beiore the heating eneig'y is turned on, as against it the whole body o't hot water had to be drained from the large container 1. From the aforesaid it is to be seen that it is only necessary to withdraw a small amount of warm water for turning on the heating, enei thereby providing a very accurate heat ng device.

What I claim is:

1. A heatingcontainer comprised of a pair of abutting compartments, one being arranged above the other, a, cold water conleading to said upper compartment,

heating; element as ocialm'l with the lower compaitnn nt, a theormostatic regulator assoc ated with said upper compartment and said heating element, and an outlet leading from said upper compartment to said lower compartment.

2. A heating container comprised of a pair o't compartments. one be ng arranged above the other, a cold water connection leading to said upper .-ompartment, an outlet leading from said upper compartment to said lower coi'npartment, a draw-oft con nertion leading; 'l'roni the upper end oi said lower compartment, a heating element lo catod in said lower compartment, a thermostat located on top ot said upper compartment, a controlling mechanism co-opcrablo with said thermostat, and an electric circuit connecting said element and said mecl'ianism.

7"). Tu a water heating apparatus, the combination oi a compartment, a cold water connection leadingto and extending within said compartment, :1 l eating element active upon the water of said conq'iartment, a thermostat cooperahle with said element. said thermostat bein-ir disposed whereby the temperature given trom said cold water connection will become active thereon, and draw-oft means for the discharge of water heated by said element.

4-. A. water heating device comprised ot a compartment, a cold water connection de pending; through said compartment to a point adjacent the bottom thereof, a dis charge passagewav leading from the upper end of said compartment, a heatin; element contained within said compartment, and a thermostatic controlling device located adjacent said cold water connection out ide of said compartment affected bv the temperature ot the water contained in said connec tion. said thermostat being; associated with said element.

JULIUS J. KUHNER. 

